ndtxt.hxx

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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
 * This file is part of the LibreOffice project.
 *
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
 *
 * This file incorporates work covered by the following license notice:
 *
 *   Licensed to the Apache Software Foundation (ASF) under one or more
 *   contributor license agreements. See the NOTICE file distributed
 *   with this work for additional information regarding copyright
 *   ownership. The ASF licenses this file to you under the Apache
 *   License, Version 2.0 (the "License"); you may not use this file
 *   except in compliance with the License. You may obtain a copy of
 *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
 */
#ifndef INCLUDED_SW_INC_NDTXT_HXX
#define INCLUDED_SW_INC_NDTXT_HXX

#include <cppuhelper/weakref.hxx>

#include "doc.hxx"
#include "swdllapi.h"
#include "node.hxx"
#include "hintids.hxx"
#include "ndhints.hxx"
#include "SwNumberTreeTypes.hxx"
#include "IDocumentContentOperations.hxx"
#include "modeltoviewhelper.hxx"

#include <sfx2/Metadatable.hxx>

#include <memory>
#include <vector>
#include <set>
#include <functional>

class SfxHint;
class SwNumRule;
class SwNodeNum;
class SvxLRSpaceItem;

namespace utl {
    class TransliterationWrapper;
}
namespace vcl
{
class Font;
}

class SwContentFrame;
class SwTextField;
class SwTextInputField;
class SfxItemSet;
class SwUndoTransliterate;
struct SwSpellArgs;
struct SwConversionArgs;
class SwInterHyphInfo;
class SwWrongList;
class SwGrammarMarkUp;
struct SwDocStat;
struct SwParaIdleData_Impl;
enum class ExpandMode;

namespace sw { namespace mark { enum class RestoreMode; } }

namespace com { namespace sun { namespace star {
    namespace uno {
        template < class > class Sequence;
    }
    namespace text { class XTextContent; }
} } }

typedef std::set< sal_Int32 > SwSoftPageBreakList;

class SW_DLLPUBLIC SwTextNode
    : public SwContentNode
    , public ::sfx2::Metadatable
    , public sw::BroadcasterMixin
{
    friend class SwContentNode;
    friend class SwDoc;         
    friend class SwNodes;
    friend class SwTextFrame;
    friend class SwScriptInfo;

    std::unique_ptr<SwpHints> m_pSwpHints;

    mutable std::unique_ptr<SwNodeNum> mpNodeNum;  
    mutable std::unique_ptr<SwNodeNum> mpNodeNumRLHidden; 

    OUString m_Text;

    SwParaIdleData_Impl* m_pParaIdleData_Impl;

    mutable bool m_bContainsHiddenChars : 1;
    mutable bool m_bHiddenCharsHidePara : 1;
    mutable bool m_bRecalcHiddenCharFlags : 1;

    mutable bool m_bLastOutlineState : 1;
    bool m_bNotifiable;

    bool mbEmptyListStyleSetDueToSetOutlineLevelAttr;

    bool mbInSetOrResetAttr;

    std::unique_ptr< OUString > m_pNumStringCache;

    css::uno::WeakReference<css::text::XTextContent> m_wXParagraph;

    // DrawingLayer FillAttributes in a preprocessed form for primitive usage
    drawinglayer::attribute::SdrAllFillAttributesHelperPtr  maFillAttributes;

    SAL_DLLPRIVATE SwTextNode( const SwNodeIndex &rWhere, SwTextFormatColl *pTextColl,
                             const SfxItemSet* pAutoAttr = nullptr );

    SAL_DLLPRIVATE void CopyAttr( SwTextNode *pDest, const sal_Int32 nStart, const sal_Int32 nOldPos);

    SAL_DLLPRIVATE SwTextNode* MakeNewTextNode( const SwNodeIndex&, bool bNext = true,
                                bool bChgFollow = true );

    SAL_DLLPRIVATE void CutImpl(
          SwTextNode * const pDest, const SwIndex & rDestStart,
          const SwIndex & rStart, /*const*/ sal_Int32 nLen,
          const bool bUpdate = true );

    SAL_DLLPRIVATE void MoveTextAttr_To_AttrSet();  // Called by SplitNode.

    SAL_DLLPRIVATE virtual void NewAttrSet( SwAttrPool& ) override;

    bool IsCalcHiddenCharFlags() const
        { return m_bRecalcHiddenCharFlags; }
    void SetHiddenCharAttribute( bool bNewHiddenCharsHidePara, bool bNewContainsHiddenChars ) const
    {
        m_bHiddenCharsHidePara = bNewHiddenCharsHidePara;
        m_bContainsHiddenChars = bNewContainsHiddenChars;
        m_bRecalcHiddenCharFlags = false;
    }

    SAL_DLLPRIVATE void CalcHiddenCharFlags() const;

    SAL_DLLPRIVATE void SetLanguageAndFont( const SwPaM &rPaM,
            LanguageType nLang, sal_uInt16 nLangWhichId,
            const vcl::Font *pFont,  sal_uInt16 nFontWhichId );


    SAL_DLLPRIVATE void InitSwParaStatistics( bool bNew );

    inline void TryDeleteSwpHints();

    SAL_DLLPRIVATE void impl_FormatToTextAttr(const SfxItemSet& i_rAttrSet);

    const SwTextInputField* GetOverlappingInputField( const SwTextAttr& rTextAttr ) const;

    void DelFrames_TextNodePart();

public:
    enum class WrongState { TODO, PENDING, DONE };

    bool IsWordCountDirty() const;
    WrongState GetWrongDirty() const;
    bool IsWrongDirty() const;
    bool IsGrammarCheckDirty() const;
    bool IsSmartTagDirty() const;
    bool IsAutoCompleteWordDirty() const;
    void SetWordCountDirty( bool bNew ) const;
    void SetWrongDirty(WrongState eNew) const;
    void SetGrammarCheckDirty( bool bNew ) const;
    void SetSmartTagDirty( bool bNew ) const;
    void SetAutoCompleteWordDirty( bool bNew ) const;
    void SetWrong( SwWrongList* pNew, bool bDelete = true );
    SwWrongList* GetWrong();
    const SwWrongList* GetWrong() const;
    void SetGrammarCheck( SwGrammarMarkUp* pNew, bool bDelete = true );
    SwGrammarMarkUp* GetGrammarCheck();
    // return SwWrongList because *function pointer* return values aren't covariant
    SwWrongList const* GetGrammarCheck() const;
    void SetSmartTags( SwWrongList* pNew, bool bDelete = true );
    SwWrongList* GetSmartTags();
    SwWrongList const* GetSmartTags() const;
    void TryCharSetExpandToNum(const SfxItemSet& pCharSet);


protected:
    virtual void SwClientNotify( const SwModify&, const SfxHint& ) override;

public:
    using SwContentNode::GetAttr;

    const OUString& GetText() const { return m_Text; }

    // returns the maximum number of characters that can still be added to the node
    inline sal_Int32 GetSpaceLeft() const;

    inline       SwpHints &GetSwpHints();
    inline const SwpHints &GetSwpHints() const;
          SwpHints *GetpSwpHints()       { return m_pSwpHints.get(); }
    const SwpHints *GetpSwpHints() const { return m_pSwpHints.get(); }
    bool   HasHints() const { return m_pSwpHints != nullptr; }
    inline       SwpHints &GetOrCreateSwpHints();

    virtual ~SwTextNode() override;

    virtual sal_Int32 Len() const override;

    void GetMinMaxSize( sal_uLong nIndex, sal_uLong& rMin, sal_uLong &rMax, sal_uLong &rAbs ) const;

    virtual bool SetAttr( const SfxPoolItem& ) override;
    virtual bool SetAttr( const SfxItemSet& rSet ) override;
    virtual bool ResetAttr( sal_uInt16 nWhich1, sal_uInt16 nWhich2 = 0 ) override;
    virtual bool ResetAttr( const std::vector<sal_uInt16>& rWhichArr ) override;
    virtual sal_uInt16 ResetAllAttr() override;

    OUString InsertText( const OUString & rStr, const SwIndex & rIdx,
                     const SwInsertFlags nMode
                         = SwInsertFlags::DEFAULT );

    void EraseText ( const SwIndex &rIdx, const sal_Int32 nCount = SAL_MAX_INT32,
                     const SwInsertFlags nMode = SwInsertFlags::DEFAULT );

    void RstTextAttr(
        const SwIndex &rIdx,
        const sal_Int32 nLen,
        const sal_uInt16 nWhich = 0,
        const SfxItemSet* pSet = nullptr,
        const bool bInclRefToxMark = false,
        const bool bExactRange = false );
    void    GCAttr();

    // Delete text attribute (needs to be deregistered at Pool!)
    void    DestroyAttr( SwTextAttr* pAttr );

    // delete all attributes from SwpHintsArray.
    void    ClearSwpHintsArr( bool bDelFields );

    void    FileLoadedInitHints();

    bool    InsertHint( SwTextAttr * const pAttr,
                  const SetAttrMode nMode = SetAttrMode::DEFAULT );
    SwTextAttr* InsertItem( SfxPoolItem& rAttr,
                  const sal_Int32 nStart, const sal_Int32 nEnd,
                  const SetAttrMode nMode = SetAttrMode::DEFAULT );

    bool SetAttr( const SfxItemSet& rSet,
                  sal_Int32 nStt, sal_Int32 nEnd,
                  const SetAttrMode nMode = SetAttrMode::DEFAULT,
                  SwTextAttr **ppNewTextAttr = nullptr);
    bool GetParaAttr( SfxItemSet& rSet, sal_Int32 nStt, sal_Int32 nEnd,
                  const bool bOnlyTextAttr  = false,
                  const bool bGetFromChrFormat = true,
                  const bool bMergeIndentValuesOfNumRule = false,
                  SwRootFrame const* pLayout = nullptr) const;

    void FormatToTextAttr( SwTextNode* pNd );

    void DeleteAttributes( const sal_uInt16 nWhich,
                  const sal_Int32 nStart, const sal_Int32 nEnd = 0 );
    void DeleteAttribute ( SwTextAttr * const pTextAttr );

    void CopyText( SwTextNode * const pDest,
               const SwIndex &rStart,
               const sal_Int32 nLen,
               const bool bForceCopyOfAllAttrs );
    void CopyText( SwTextNode * const pDest,
               const SwIndex &rDestStart,
               const SwIndex &rStart,
               sal_Int32 nLen,
               const bool bForceCopyOfAllAttrs = false );

    void        CutText(SwTextNode * const pDest,
                    const SwIndex & rStart, const sal_Int32 nLen);
    inline void CutText(SwTextNode * const pDest, const SwIndex &rDestStart,
                    const SwIndex & rStart, const sal_Int32 nLen);

    void ReplaceText( const SwIndex& rStart, const sal_Int32 nDelLen,
            const OUString & rText );
    void ReplaceTextOnly( sal_Int32 nPos, sal_Int32 nLen,
            const OUString& rText,
            const css::uno::Sequence<sal_Int32>& rOffsets );

    virtual SwContentFrame *MakeFrame( SwFrame* ) override;
    SwTextNode * SplitContentNode(const SwPosition &,
            std::function<void (SwTextNode *, sw::mark::RestoreMode)> const* pContentIndexRestore);
    virtual SwContentNode *JoinNext() override;
    void JoinPrev();

    SwContentNode *AppendNode( const SwPosition & );

    bool DontExpandFormat( const SwIndex& rIdx, bool bFlag = true,
                        bool bFormatToTextAttributes = true );

    enum GetTextAttrMode {
        DEFAULT,    
        EXPAND,     
        PARENT,     
    };

    SwTextAttr *GetTextAttrAt(
        sal_Int32 const nIndex,
        sal_uInt16 const nWhich,
        enum GetTextAttrMode const eMode = DEFAULT ) const;

    std::vector<SwTextAttr *> GetTextAttrsAt(
        sal_Int32 const nIndex,
        sal_uInt16 const nWhich ) const;

    SwTextAttr *GetTextAttrForCharAt(
        const sal_Int32 nIndex,
        const sal_uInt16 nWhich = RES_TXTATR_END ) const;

    SwTextField* GetFieldTextAttrAt(
        const sal_Int32 nIndex,
        const bool bIncludeInputFieldAtStart = false ) const;

    bool Spell(SwSpellArgs*);
    bool Convert( SwConversionArgs & );

    inline SwTextFormatColl *GetTextColl() const;
    virtual SwFormatColl *ChgFormatColl( SwFormatColl* ) override;
    void ChgTextCollUpdateNum( const SwTextFormatColl* pOld,
                                const SwTextFormatColl* pNew );

    void CopyCollFormat( SwTextNode& rDestNd );

    // BEGIN OF BULLET/NUMBERING/OUTLINE STUFF:

    SwNumRule *GetNumRule(bool bInParent = true) const;

    const SwNodeNum* GetNum(SwRootFrame const* pLayout = nullptr) const;
    void DoNum(std::function<void (SwNodeNum &)> const&);

    SwNumberTree::tNumberVector GetNumberVector(SwRootFrame const* pLayout = nullptr) const;

    bool IsOutline() const;

    bool IsOutlineStateChanged() const;

    void UpdateOutlineState();

    void NumRuleChgd();

    OUString GetNumString( const bool _bInclPrefixAndSuffixStrings = true,
            const unsigned int _nRestrictToThisLevel = MAXLEVEL,
            SwRootFrame const* pLayout = nullptr) const;

     long GetLeftMarginWithNum( bool bTextLeft = false ) const;

    bool GetFirstLineOfsWithNum( short& rFirstOffset ) const;

    SwTwips GetAdditionalIndentForStartingNewList() const;

    void ClearLRSpaceItemDueToListLevelIndents( std::shared_ptr<SvxLRSpaceItem>& o_rLRSpaceItem ) const;

    long GetLeftMarginForTabCalculation() const;

    bool HasNumber() const;

    bool HasBullet() const;

    bool IsNumbered(SwRootFrame const* pLayout = nullptr) const;

    bool HasMarkedLabel() const;

    void SetAttrListLevel(int nLevel);

    bool HasAttrListLevel() const;

    int GetAttrListLevel() const;

    int GetActualListLevel() const;

    int GetAttrOutlineLevel() const;

    void SetAttrOutlineLevel(int nLevel);

    bool IsEmptyListStyleDueToSetOutlineLevelAttr() { return mbEmptyListStyleSetDueToSetOutlineLevelAttr;}
    void SetEmptyListStyleDueToSetOutlineLevelAttr();
    void ResetEmptyListStyleDueToResetOutlineLevelAttr();

    SwTwips GetWidthOfLeadingTabs() const;

    bool HasVisibleNumberingOrBullet() const;

    void SetListId(OUString const& rListId);
    OUString GetListId() const;

    bool AreListLevelIndentsApplicable() const;

    bool GetListTabStopPosition( long& nListTabStopPosition ) const;

    OUString GetLabelFollowedBy() const;

    // END OF BULLET/NUMBERING/OUTLINE STUFF:

    void fillSoftPageBreakList( SwSoftPageBreakList& rBreak ) const;

    LanguageType GetLang( const sal_Int32 nBegin, const sal_Int32 nLen = 0,
                    sal_uInt16 nScript = 0 ) const;

    bool IsSymbolAt(sal_Int32 nBegin) const; // In itratr.cxx.
    virtual SwContentNode* MakeCopy(SwDoc*, const SwNodeIndex&, bool bNewFrames) const override;

    bool Hyphenate( SwInterHyphInfo &rHyphInf );
    void DelSoftHyph( const sal_Int32 nStart, const sal_Int32 nEnd );

    OUString GetExpandText( SwRootFrame const* pLayout,
                            const sal_Int32 nIdx = 0,
                            const sal_Int32 nLen = -1,
                            const bool bWithNum = false,
                            const bool bAddSpaceAfterListLabelStr = false,
                            const bool bWithSpacesForLevel = false,
                            const ExpandMode eAdditionalMode = ExpandMode::ExpandFootnote) const;
    bool CopyExpandText( SwTextNode& rDestNd, const SwIndex* pDestIdx,
                           sal_Int32 nIdx, sal_Int32 nLen,
                           SwRootFrame const* pLayout,
                           bool bWithNum = false, bool bWithFootnote = true,
                           bool bReplaceTabsWithSpaces = false ) const;

    OUString GetRedlineText() const;

    sal_Int32 GetDropLen(sal_Int32 nWishLen) const;

    bool GetDropSize(int& rFontHeight, int& rDropHeight, int& rDropDescent) const;

    bool CalcHiddenParaField()
        { return m_pSwpHints && m_pSwpHints->CalcHiddenParaField(); }
    void SetCalcHiddenParaField()
        { if (m_pSwpHints) m_pSwpHints->SetCalcHiddenParaField(); }

    bool IsHiddenByParaField() const
        { return m_pSwpHints && m_pSwpHints->IsHiddenByParaField(); }

    int FieldCanHideParaWeight(SwFieldIds eFieldId) const
        {
            return GetDoc()->FieldCanHideParaWeight(eFieldId);
        }
    bool FieldHidesPara(const SwField& rField) const
        { return GetDoc()->FieldHidesPara(rField); }


    bool HasHiddenCharAttribute( bool bWholePara ) const
    {
        if ( m_bRecalcHiddenCharFlags )
            CalcHiddenCharFlags();
        return bWholePara ? m_bHiddenCharsHidePara : m_bContainsHiddenChars;
    }

    void SetCalcHiddenCharFlags() const
        { m_bRecalcHiddenCharFlags = true; }

    bool IsHidden() const;


    virtual void Update(
        SwIndex const & rPos,
        const sal_Int32 nChangeLen,
        const bool bNegative = false,
        const bool bDelete = false ) override;

    void TransliterateText( utl::TransliterationWrapper& rTrans,
                            sal_Int32 nStart, sal_Int32 nEnd,
                            SwUndoTransliterate* pUndo );

    bool CountWords( SwDocStat& rStat, sal_Int32 nStart, sal_Int32 nEnd ) const;

    bool IsNotificationEnabled() const;

    bool IsNotifiable() const;

    void SetListRestart( bool bRestart );
    bool IsListRestart() const;

    void SetAttrListRestartValue( SwNumberTree::tSwNumTreeNumber nNum );
    bool HasAttrListRestartValue() const;
    SwNumberTree::tSwNumTreeNumber GetAttrListRestartValue() const;
    SwNumberTree::tSwNumTreeNumber GetActualListStartValue() const;

    void SetCountedInList( bool bCounted );
    bool IsCountedInList() const;

    void AddToList();
    void AddToListRLHidden();
    void RemoveFromList();
    void RemoveFromListRLHidden();
    bool IsInList() const;

    bool IsFirstOfNumRule(SwRootFrame const& rLayout) const;

    SAL_DLLPRIVATE css::uno::WeakReference<css::text::XTextContent> const& GetXParagraph() const
            { return m_wXParagraph; }
    SAL_DLLPRIVATE void SetXParagraph(css::uno::Reference<css::text::XTextContent> const& xParagraph)
            { m_wXParagraph = xParagraph; }

    virtual ::sfx2::IXmlIdRegistry& GetRegistry() override;
    virtual bool IsInClipboard() const override;
    virtual bool IsInUndo() const override;
    virtual bool IsInContent() const override;
    virtual css::uno::Reference< css::rdf::XMetadatable > MakeUnoObject() override;

    bool IsCollapse() const;

    virtual void dumpAsXml(xmlTextWriterPtr pWriter) const override;

    sal_uInt32 GetRsid( sal_Int32 nStt, sal_Int32 nEnd ) const;
    sal_uInt32 GetParRsid() const;

    bool CompareRsid( const SwTextNode &rTextNode, sal_Int32 nStt1, sal_Int32 nStt2 ) const;
    bool CompareParRsid( const SwTextNode &rTextNode ) const;

    // Access to DrawingLayer FillAttributes in a preprocessed form for primitive usage
    virtual drawinglayer::attribute::SdrAllFillAttributesHelperPtr getSdrAllFillAttributesHelper() const override;

    static bool IsIgnoredCharFormatForNumbering(const sal_uInt16 nWhich);
};

inline SwpHints & SwTextNode::GetSwpHints()
{
    assert( m_pSwpHints );
    return *m_pSwpHints;
}
inline const SwpHints &SwTextNode::GetSwpHints() const
{
    assert( m_pSwpHints );
    return *m_pSwpHints;
}

inline SwpHints& SwTextNode::GetOrCreateSwpHints()
{
    if ( !m_pSwpHints )
    {
        m_pSwpHints.reset(new SwpHints(*this));
    }
    return *m_pSwpHints;
}

inline void SwTextNode::TryDeleteSwpHints()
{
    if ( m_pSwpHints && m_pSwpHints->CanBeDeleted() )
    {
        m_pSwpHints.reset();
    }
}

inline SwTextFormatColl* SwTextNode::GetTextColl() const
{
    return static_cast<SwTextFormatColl*>(const_cast<SwModify*>(GetRegisteredIn()));
}

inline SwTextNode *SwNode::GetTextNode()
{
     return SwNodeType::Text == m_nNodeType ? static_cast<SwTextNode*>(this) : nullptr;
}

inline const SwTextNode *SwNode::GetTextNode() const
{
     return SwNodeType::Text == m_nNodeType ? static_cast<const SwTextNode*>(this) : nullptr;
}

inline void
SwTextNode::CutText(SwTextNode * const pDest, const SwIndex & rDestStart,
                    const SwIndex & rStart, const sal_Int32 nLen)
{
    CutImpl( pDest, rDestStart, rStart, nLen );
}

inline sal_Int32 SwTextNode::GetSpaceLeft() const
{
    // do not fill the String up to the max - need to be able to have a
    // SwPosition "behind" the last character, i.e., at index TXTNODE_MAX + 1
    const sal_Int32 TXTNODE_MAX = SAL_MAX_INT32 - 2;
    return TXTNODE_MAX-m_Text.getLength();
}

#endif

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